This is a brand new 1/4" MPT to 1/4" MFL Shut off Valve with Check Valve.
Comes with 1/4", 5/16" or No Barb.
Choose the optioin you need from the 3 options at the bottom of the page:
Option 1 -Valve Only
Option 2 - 1/4" Barb
Option 3 - 5/16" Barb